java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call1_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:28:28,073 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:28:28,075 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:28:28,087 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:28:28,088 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:28:28,089 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:28:28,090 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:28:28,092 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:28:28,094 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:28:28,095 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:28:28,096 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:28:28,096 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:28:28,097 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:28:28,098 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:28:28,099 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:28:28,100 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:28:28,101 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:28:28,106 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:28:28,108 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:28:28,113 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:28:28,114 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:28:28,119 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:28:28,124 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:28:28,125 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:28:28,128 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:28:28,129 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:28:28,130 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:28:28,133 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:28:28,134 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:28:28,135 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:28:28,135 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:28:28,139 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:28:28,139 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:28:28,140 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:28:28,141 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:28:28,141 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:28:28,142 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-26 22:28:28,168 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:28:28,168 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:28:28,169 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:28:28,169 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 22:28:28,170 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 22:28:28,170 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 22:28:28,170 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 22:28:28,170 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:28:28,171 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:28:28,171 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:28:28,171 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:28:28,171 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:28:28,171 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:28:28,172 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:28:28,172 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:28:28,172 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:28:28,172 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:28:28,172 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:28:28,173 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:28:28,173 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:28:28,173 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:28:28,173 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:28:28,173 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:28:28,173 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 22:28:28,174 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:28:28,174 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:28:28,174 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:28:28,174 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 22:28:28,219 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:28:28,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:28:28,239 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:28:28,241 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:28:28,242 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:28:28,242 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call1_true-termination.i [2018-10-26 22:28:28,309 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2da9ca444/d94d2bef06fb42b7b30eaf62cf736d03/FLAG6a3df40d7 [2018-10-26 22:28:28,725 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:28:28,725 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_array_index_value_true-unreach-call1_true-termination.i [2018-10-26 22:28:28,730 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2da9ca444/d94d2bef06fb42b7b30eaf62cf736d03/FLAG6a3df40d7 [2018-10-26 22:28:28,744 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/2da9ca444/d94d2bef06fb42b7b30eaf62cf736d03 [2018-10-26 22:28:28,753 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:28:28,755 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 22:28:28,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:28:28,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:28:28,760 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:28:28,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:28:28" (1/1) ... [2018-10-26 22:28:28,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268c3302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:28, skipping insertion in model container [2018-10-26 22:28:28,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:28:28" (1/1) ... [2018-10-26 22:28:28,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:28:28,795 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:28:28,971 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:28:28,975 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:28:28,997 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:28:29,018 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:28:29,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:29 WrapperNode [2018-10-26 22:28:29,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:28:29,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:28:29,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:28:29,020 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:28:29,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:29" (1/1) ... [2018-10-26 22:28:29,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:29" (1/1) ... [2018-10-26 22:28:29,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:28:29,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:28:29,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:28:29,062 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:28:29,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:29" (1/1) ... [2018-10-26 22:28:29,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:29" (1/1) ... [2018-10-26 22:28:29,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:29" (1/1) ... [2018-10-26 22:28:29,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:29" (1/1) ... [2018-10-26 22:28:29,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:29" (1/1) ... [2018-10-26 22:28:29,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:29" (1/1) ... [2018-10-26 22:28:29,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:29" (1/1) ... [2018-10-26 22:28:29,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:28:29,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:28:29,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:28:29,108 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:28:29,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:28:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:28:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:28:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 22:28:29,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 22:28:29,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 22:28:29,576 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:28:29,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:28:29 BoogieIcfgContainer [2018-10-26 22:28:29,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:28:29,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:28:29,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:28:29,592 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:28:29,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:28:28" (1/3) ... [2018-10-26 22:28:29,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523c8285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:28:29, skipping insertion in model container [2018-10-26 22:28:29,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:28:29" (2/3) ... [2018-10-26 22:28:29,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523c8285 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:28:29, skipping insertion in model container [2018-10-26 22:28:29,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:28:29" (3/3) ... [2018-10-26 22:28:29,599 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call1_true-termination.i [2018-10-26 22:28:29,611 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:28:29,620 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:28:29,638 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:28:29,679 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:28:29,680 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:28:29,680 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:28:29,680 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:28:29,680 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:28:29,680 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:28:29,680 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:28:29,681 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:28:29,681 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:28:29,702 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-10-26 22:28:29,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-26 22:28:29,708 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:29,708 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:29,711 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:29,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:29,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1645090688, now seen corresponding path program 1 times [2018-10-26 22:28:29,719 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:29,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:29,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:29,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:29,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:29,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:29,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:28:29,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 22:28:29,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 22:28:29,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 22:28:29,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:28:29,868 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2018-10-26 22:28:29,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:29,894 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2018-10-26 22:28:29,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 22:28:29,896 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-10-26 22:28:29,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:29,908 INFO L225 Difference]: With dead ends: 47 [2018-10-26 22:28:29,909 INFO L226 Difference]: Without dead ends: 22 [2018-10-26 22:28:29,914 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 22:28:29,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-10-26 22:28:29,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-10-26 22:28:29,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-26 22:28:29,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2018-10-26 22:28:29,948 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 12 [2018-10-26 22:28:29,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:29,949 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-10-26 22:28:29,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 22:28:29,949 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2018-10-26 22:28:29,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-26 22:28:29,950 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:29,950 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:29,951 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:29,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:29,951 INFO L82 PathProgramCache]: Analyzing trace with hash -22656602, now seen corresponding path program 1 times [2018-10-26 22:28:29,951 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:29,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:29,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:29,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:29,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:30,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:30,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:28:30,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:28:30,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 22:28:30,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 22:28:30,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:28:30,037 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 3 states. [2018-10-26 22:28:30,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:30,168 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2018-10-26 22:28:30,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 22:28:30,169 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-10-26 22:28:30,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:30,170 INFO L225 Difference]: With dead ends: 49 [2018-10-26 22:28:30,170 INFO L226 Difference]: Without dead ends: 32 [2018-10-26 22:28:30,173 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 22:28:30,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-10-26 22:28:30,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 27. [2018-10-26 22:28:30,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-10-26 22:28:30,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-10-26 22:28:30,184 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 13 [2018-10-26 22:28:30,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:30,185 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-10-26 22:28:30,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 22:28:30,185 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-10-26 22:28:30,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-26 22:28:30,187 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:30,187 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:30,187 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:30,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:30,188 INFO L82 PathProgramCache]: Analyzing trace with hash -137382522, now seen corresponding path program 1 times [2018-10-26 22:28:30,188 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:30,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:30,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:30,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:30,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:30,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:30,331 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:30,331 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:28:30,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:30,379 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:30,476 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-26 22:28:30,491 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-26 22:28:30,492 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:28:30,517 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:28:30,548 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:28:30,549 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:11, output treesize:7 [2018-10-26 22:28:30,853 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-10-26 22:28:30,859 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-10-26 22:28:30,859 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:28:30,866 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:28:30,868 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:28:30,868 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-10-26 22:28:31,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:31,189 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:31,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8] total 9 [2018-10-26 22:28:31,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 22:28:31,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 22:28:31,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:28:31,191 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 9 states. [2018-10-26 22:28:35,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:35,787 INFO L93 Difference]: Finished difference Result 93 states and 109 transitions. [2018-10-26 22:28:35,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 22:28:35,789 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2018-10-26 22:28:35,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:35,790 INFO L225 Difference]: With dead ends: 93 [2018-10-26 22:28:35,791 INFO L226 Difference]: Without dead ends: 73 [2018-10-26 22:28:35,792 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-10-26 22:28:35,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-10-26 22:28:35,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 50. [2018-10-26 22:28:35,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-26 22:28:35,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2018-10-26 22:28:35,804 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 16 [2018-10-26 22:28:35,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:35,805 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2018-10-26 22:28:35,805 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 22:28:35,805 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2018-10-26 22:28:35,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 22:28:35,806 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:35,806 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:35,807 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:35,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:35,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1145283002, now seen corresponding path program 2 times [2018-10-26 22:28:35,807 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:35,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:35,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:35,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:35,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:35,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:35,976 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:28:35,993 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-26 22:28:36,048 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-26 22:28:36,049 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:28:36,053 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:36,180 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:36,214 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:36,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-10-26 22:28:36,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 22:28:36,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 22:28:36,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:28:36,216 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand 6 states. [2018-10-26 22:28:36,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:36,559 INFO L93 Difference]: Finished difference Result 99 states and 113 transitions. [2018-10-26 22:28:36,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 22:28:36,563 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-10-26 22:28:36,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:36,565 INFO L225 Difference]: With dead ends: 99 [2018-10-26 22:28:36,565 INFO L226 Difference]: Without dead ends: 62 [2018-10-26 22:28:36,566 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 22:28:36,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-10-26 22:28:36,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2018-10-26 22:28:36,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-10-26 22:28:36,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 63 transitions. [2018-10-26 22:28:36,576 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 63 transitions. Word has length 22 [2018-10-26 22:28:36,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:36,577 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 63 transitions. [2018-10-26 22:28:36,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 22:28:36,577 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 63 transitions. [2018-10-26 22:28:36,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 22:28:36,578 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:36,578 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:36,579 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:36,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:36,579 INFO L82 PathProgramCache]: Analyzing trace with hash 2061655752, now seen corresponding path program 3 times [2018-10-26 22:28:36,579 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:36,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:36,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:36,580 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-26 22:28:36,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:36,798 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:36,798 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:36,798 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:28:36,818 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-26 22:28:36,913 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-10-26 22:28:36,913 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:28:36,918 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:36,955 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:36,977 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:36,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-10-26 22:28:36,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:28:36,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:28:36,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:28:36,978 INFO L87 Difference]: Start difference. First operand 57 states and 63 transitions. Second operand 7 states. [2018-10-26 22:28:37,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:37,371 INFO L93 Difference]: Finished difference Result 113 states and 128 transitions. [2018-10-26 22:28:37,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:28:37,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-10-26 22:28:37,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:37,373 INFO L225 Difference]: With dead ends: 113 [2018-10-26 22:28:37,373 INFO L226 Difference]: Without dead ends: 72 [2018-10-26 22:28:37,374 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:28:37,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-10-26 22:28:37,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 67. [2018-10-26 22:28:37,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-10-26 22:28:37,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2018-10-26 22:28:37,384 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 25 [2018-10-26 22:28:37,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:37,385 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2018-10-26 22:28:37,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:28:37,385 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2018-10-26 22:28:37,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-26 22:28:37,386 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:37,386 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:37,386 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:37,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:37,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1573423354, now seen corresponding path program 4 times [2018-10-26 22:28:37,387 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:37,387 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:37,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:37,388 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-26 22:28:37,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:37,697 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:37,698 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:37,698 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:28:37,710 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-26 22:28:37,758 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-26 22:28:37,758 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:28:37,761 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:37,804 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:37,825 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:37,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2018-10-26 22:28:37,826 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-26 22:28:37,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-26 22:28:37,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-26 22:28:37,826 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 8 states. [2018-10-26 22:28:38,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:38,353 INFO L93 Difference]: Finished difference Result 130 states and 147 transitions. [2018-10-26 22:28:38,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 22:28:38,354 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-10-26 22:28:38,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:38,356 INFO L225 Difference]: With dead ends: 130 [2018-10-26 22:28:38,356 INFO L226 Difference]: Without dead ends: 82 [2018-10-26 22:28:38,357 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-26 22:28:38,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-10-26 22:28:38,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 77. [2018-10-26 22:28:38,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-10-26 22:28:38,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2018-10-26 22:28:38,367 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 85 transitions. Word has length 28 [2018-10-26 22:28:38,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:38,367 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 85 transitions. [2018-10-26 22:28:38,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-26 22:28:38,368 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 85 transitions. [2018-10-26 22:28:38,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 22:28:38,369 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:38,369 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:38,369 INFO L424 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:38,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:38,369 INFO L82 PathProgramCache]: Analyzing trace with hash -909668856, now seen corresponding path program 5 times [2018-10-26 22:28:38,370 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:38,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:38,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:38,371 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-26 22:28:38,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:38,529 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:38,529 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:38,529 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:28:38,538 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-10-26 22:28:39,574 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-10-26 22:28:39,574 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:28:39,578 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:39,610 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:39,639 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:39,640 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-10-26 22:28:39,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 22:28:39,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 22:28:39,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:28:39,641 INFO L87 Difference]: Start difference. First operand 77 states and 85 transitions. Second operand 9 states. [2018-10-26 22:28:40,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:40,013 INFO L93 Difference]: Finished difference Result 147 states and 166 transitions. [2018-10-26 22:28:40,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 22:28:40,014 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 31 [2018-10-26 22:28:40,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:40,015 INFO L225 Difference]: With dead ends: 147 [2018-10-26 22:28:40,015 INFO L226 Difference]: Without dead ends: 92 [2018-10-26 22:28:40,016 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-26 22:28:40,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-10-26 22:28:40,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 87. [2018-10-26 22:28:40,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2018-10-26 22:28:40,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 96 transitions. [2018-10-26 22:28:40,027 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 96 transitions. Word has length 31 [2018-10-26 22:28:40,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:40,028 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 96 transitions. [2018-10-26 22:28:40,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 22:28:40,028 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 96 transitions. [2018-10-26 22:28:40,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-26 22:28:40,029 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:40,029 INFO L375 BasicCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:40,029 INFO L424 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:40,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:40,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1028849722, now seen corresponding path program 6 times [2018-10-26 22:28:40,030 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:40,030 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:40,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:40,031 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-26 22:28:40,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:40,280 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:40,281 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:40,281 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:28:40,292 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-10-26 22:28:40,568 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-10-26 22:28:40,568 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:28:40,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:40,586 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:40,607 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:40,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-10-26 22:28:40,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-26 22:28:40,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-26 22:28:40,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-10-26 22:28:40,608 INFO L87 Difference]: Start difference. First operand 87 states and 96 transitions. Second operand 10 states. [2018-10-26 22:28:41,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:41,205 INFO L93 Difference]: Finished difference Result 164 states and 185 transitions. [2018-10-26 22:28:41,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-26 22:28:41,216 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2018-10-26 22:28:41,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:41,219 INFO L225 Difference]: With dead ends: 164 [2018-10-26 22:28:41,219 INFO L226 Difference]: Without dead ends: 102 [2018-10-26 22:28:41,222 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-10-26 22:28:41,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-10-26 22:28:41,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 97. [2018-10-26 22:28:41,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-10-26 22:28:41,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 107 transitions. [2018-10-26 22:28:41,233 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 107 transitions. Word has length 34 [2018-10-26 22:28:41,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:41,234 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 107 transitions. [2018-10-26 22:28:41,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-26 22:28:41,234 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 107 transitions. [2018-10-26 22:28:41,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-10-26 22:28:41,235 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:41,235 INFO L375 BasicCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:41,237 INFO L424 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:41,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:41,237 INFO L82 PathProgramCache]: Analyzing trace with hash 391925064, now seen corresponding path program 7 times [2018-10-26 22:28:41,237 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:41,237 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:41,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:41,239 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-26 22:28:41,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:41,601 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:41,601 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:41,601 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:28:41,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:41,646 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:41,697 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:41,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-10-26 22:28:41,698 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-26 22:28:41,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-26 22:28:41,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:28:41,699 INFO L87 Difference]: Start difference. First operand 97 states and 107 transitions. Second operand 11 states. [2018-10-26 22:28:42,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:42,331 INFO L93 Difference]: Finished difference Result 181 states and 204 transitions. [2018-10-26 22:28:42,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 22:28:42,332 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2018-10-26 22:28:42,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:42,334 INFO L225 Difference]: With dead ends: 181 [2018-10-26 22:28:42,334 INFO L226 Difference]: Without dead ends: 112 [2018-10-26 22:28:42,335 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-10-26 22:28:42,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-10-26 22:28:42,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 107. [2018-10-26 22:28:42,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-10-26 22:28:42,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 118 transitions. [2018-10-26 22:28:42,345 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 118 transitions. Word has length 37 [2018-10-26 22:28:42,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:42,345 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 118 transitions. [2018-10-26 22:28:42,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-26 22:28:42,345 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 118 transitions. [2018-10-26 22:28:42,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-10-26 22:28:42,346 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:42,347 INFO L375 BasicCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:42,347 INFO L424 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:42,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:42,347 INFO L82 PathProgramCache]: Analyzing trace with hash -209127290, now seen corresponding path program 8 times [2018-10-26 22:28:42,347 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:42,347 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:42,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:42,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:28:42,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:43,097 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:43,098 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:43,098 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:28:43,108 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-26 22:28:43,144 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-26 22:28:43,144 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:28:43,147 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:43,163 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:43,184 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-26 22:28:43,184 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2018-10-26 22:28:43,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-26 22:28:43,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-26 22:28:43,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-10-26 22:28:43,185 INFO L87 Difference]: Start difference. First operand 107 states and 118 transitions. Second operand 12 states. [2018-10-26 22:28:43,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:28:43,953 INFO L93 Difference]: Finished difference Result 198 states and 223 transitions. [2018-10-26 22:28:43,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-26 22:28:43,956 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 40 [2018-10-26 22:28:43,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:28:43,957 INFO L225 Difference]: With dead ends: 198 [2018-10-26 22:28:43,958 INFO L226 Difference]: Without dead ends: 122 [2018-10-26 22:28:43,958 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-10-26 22:28:43,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-10-26 22:28:43,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 117. [2018-10-26 22:28:43,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2018-10-26 22:28:43,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 129 transitions. [2018-10-26 22:28:43,970 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 129 transitions. Word has length 40 [2018-10-26 22:28:43,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:28:43,970 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 129 transitions. [2018-10-26 22:28:43,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-26 22:28:43,970 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 129 transitions. [2018-10-26 22:28:43,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-26 22:28:43,971 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:28:43,972 INFO L375 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:28:43,972 INFO L424 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:28:43,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:28:43,972 INFO L82 PathProgramCache]: Analyzing trace with hash -441148280, now seen corresponding path program 9 times [2018-10-26 22:28:43,972 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:28:43,973 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:28:43,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:43,974 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-26 22:28:43,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:28:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:28:44,688 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:28:44,689 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 22:28:44,689 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:28:44,704 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-26 22:28:47,225 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-10-26 22:28:47,226 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-26 22:28:47,238 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:28:47,305 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 29 [2018-10-26 22:28:47,307 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-26 22:28:47,308 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,315 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,319 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 28 [2018-10-26 22:28:47,323 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-26 22:28:47,324 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,330 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,370 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,370 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:103, output treesize:22 [2018-10-26 22:28:47,457 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-10-26 22:28:47,462 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:28:47,472 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 31 [2018-10-26 22:28:47,473 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,490 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,498 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,498 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:14 [2018-10-26 22:28:47,527 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 20 [2018-10-26 22:28:47,530 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:28:47,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 31 [2018-10-26 22:28:47,532 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,549 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,550 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:14 [2018-10-26 22:28:47,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-10-26 22:28:47,585 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:28:47,586 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-10-26 22:28:47,587 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,596 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,603 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,603 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:11 [2018-10-26 22:28:47,656 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-10-26 22:28:47,656 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-26 22:28:47,732 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 16 [2018-10-26 22:28:47,794 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 24 [2018-10-26 22:28:47,795 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-10-26 22:28:47,839 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:28:47,868 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-10-26 22:28:47,869 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:97, output treesize:34 [2018-10-26 22:28:48,318 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2018-10-26 22:28:48,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 35 [2018-10-26 22:28:48,343 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-10-26 22:28:48,371 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-26 22:28:48,463 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 37 [2018-10-26 22:28:48,510 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 5 case distinctions, treesize of input 29 treesize of output 64 [2018-10-26 22:28:48,512 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 8 xjuncts. [2018-10-26 22:28:48,589 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-26 22:28:48,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 5 xjuncts. [2018-10-26 22:28:48,683 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:82, output treesize:113 [2018-10-26 22:28:54,970 WARN L179 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 25 [2018-10-26 22:28:54,988 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-10-26 22:28:54,988 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-10-26 22:28:54,991 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 35 [2018-10-26 22:28:54,995 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-10-26 22:28:54,996 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-26 22:29:01,019 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:29:11,208 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32 [2018-10-26 22:29:13,220 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:29:13,222 INFO L303 Elim1Store]: Index analysis took 2012 ms [2018-10-26 22:29:13,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 33 [2018-10-26 22:29:13,224 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-26 22:29:17,249 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:29:21,321 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 34 [2018-10-26 22:29:21,328 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:29:21,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 35 [2018-10-26 22:29:21,329 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-10-26 22:29:27,359 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:29:37,517 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-10-26 22:29:37,517 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:397, output treesize:97 [2018-10-26 22:29:41,751 WARN L179 SmtUtils]: Spent 2.07 s on a formula simplification that was a NOOP. DAG size: 34 [2018-10-26 22:29:41,797 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 56 [2018-10-26 22:29:43,807 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (+ |ULTIMATE.start_main_~#array~0.offset| (* 4 (mod (+ ULTIMATE.start_main_~index~0 4294967295) 4294967296))) |ULTIMATE.start_main_~#array~0.offset|) [2018-10-26 22:29:43,808 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:29:45,815 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (+ (* 4 (mod ULTIMATE.start_main_~index~0 4294967296)) |ULTIMATE.start_main_~#array~0.offset|) |ULTIMATE.start_main_~#array~0.offset|) [2018-10-26 22:29:45,818 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:29:45,821 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:29:45,826 INFO L303 Elim1Store]: Index analysis took 4028 ms [2018-10-26 22:29:45,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 84 [2018-10-26 22:29:45,829 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:29:47,861 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:29:52,009 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2018-10-26 22:29:52,014 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:29:54,020 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (+ (* 4 (mod ULTIMATE.start_main_~index~0 4294967296)) |ULTIMATE.start_main_~#array~0.offset|) |ULTIMATE.start_main_~#array~0.offset|) [2018-10-26 22:29:54,021 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:29:54,024 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:29:56,033 WARN L686 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_15 (+ |ULTIMATE.start_main_~#array~0.offset| (* 4 (mod (+ ULTIMATE.start_main_~index~0 4294967295) 4294967296)))) (select v_arrayElimCell_15 |ULTIMATE.start_main_~#array~0.offset|)) [2018-10-26 22:29:58,040 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= v_prenex_15 (select v_arrayElimCell_15 |ULTIMATE.start_main_~#array~0.offset|)) [2018-10-26 22:29:58,047 INFO L303 Elim1Store]: Index analysis took 6036 ms [2018-10-26 22:29:58,048 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 80 [2018-10-26 22:29:58,048 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-26 22:30:00,083 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:30:06,221 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 44 [2018-10-26 22:30:06,227 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:30:06,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 51 [2018-10-26 22:30:06,231 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-10-26 22:30:08,267 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:30:10,352 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-10-26 22:30:10,352 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:177, output treesize:151 [2018-10-26 22:30:12,359 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse7 (* 4 (mod (+ c_ULTIMATE.start_main_~index~0 4294967295) 4294967296))) (.cse3 (mod (+ c_ULTIMATE.start_main_~index~0 1) 2)) (.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array~0.base|)) (.cse9 (mod c_ULTIMATE.start_main_~index~0 4294967296))) (let ((.cse2 (not (= (* 4 .cse9) 0))) (.cse4 (select .cse8 |c_ULTIMATE.start_main_~#array~0.offset|)) (.cse5 (< .cse9 1000)) (.cse0 (= (select .cse8 (+ |c_ULTIMATE.start_main_~#array~0.offset| .cse7)) .cse3)) (.cse6 (not (= .cse7 0))) (.cse1 (= 0 |c_ULTIMATE.start_main_~#array~0.offset|))) (or (and .cse0 .cse1 (= 0 (* 4 (mod (+ c_ULTIMATE.start_main_~index~0 4294967294) 4294967296)))) (and .cse2 (= .cse3 .cse4) .cse5 .cse0 .cse6 .cse1) (and .cse2 (= |c_ULTIMATE.start_main_~#array~0.offset| .cse4) .cse5 .cse0 .cse6 .cse1)))) is different from false [2018-10-26 22:30:16,592 WARN L179 SmtUtils]: Spent 4.12 s on a formula simplification that was a NOOP. DAG size: 40 [2018-10-26 22:30:16,617 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 79 [2018-10-26 22:30:16,623 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:30:16,626 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:30:16,628 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:30:16,629 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 82 [2018-10-26 22:30:16,630 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:30:24,695 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:30:24,700 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 80 [2018-10-26 22:30:26,712 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:30:26,714 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:30:26,718 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:30:26,719 INFO L303 Elim1Store]: Index analysis took 2016 ms [2018-10-26 22:30:26,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 82 [2018-10-26 22:30:26,720 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-26 22:30:30,770 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:30:57,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 72 [2018-10-26 22:30:57,306 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:30:57,327 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:30:57,352 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:30:57,358 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 80 [2018-10-26 22:30:57,359 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-10-26 22:31:01,404 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:31:29,820 INFO L303 Elim1Store]: Index analysis took 2012 ms [2018-10-26 22:31:29,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 44 [2018-10-26 22:31:29,830 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:31:29,831 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 51 [2018-10-26 22:31:29,831 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-10-26 22:31:31,858 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:31:58,264 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-2 vars, End of recursive call: and 3 xjuncts. [2018-10-26 22:31:58,265 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:715, output treesize:198 [2018-10-26 22:32:12,519 WARN L179 SmtUtils]: Spent 12.16 s on a formula simplification that was a NOOP. DAG size: 46 [2018-10-26 22:32:28,947 WARN L179 SmtUtils]: Spent 10.23 s on a formula simplification that was a NOOP. DAG size: 50 [2018-10-26 22:32:31,002 WARN L669 Elim1Store]: solver failed to check if following equality is implied: (= (select (select |ULTIMATE.start_write~int_old_#memory_int| |ULTIMATE.start_main_~#array~0.base|) |ULTIMATE.start_write~int_#ptr.offset|) (mod ULTIMATE.start_main_~index~0 2)) [2018-10-26 22:32:31,005 INFO L303 Elim1Store]: Index analysis took 2040 ms [2018-10-26 22:32:31,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 77 [2018-10-26 22:32:31,016 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:31,021 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:31,028 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:31,030 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:31,031 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 110 [2018-10-26 22:32:31,032 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-26 22:32:33,109 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:32:33,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 76 [2018-10-26 22:32:33,144 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:33,147 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:33,151 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:33,154 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:33,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 110 [2018-10-26 22:32:33,157 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-26 22:32:35,228 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-26 22:32:44,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 94 [2018-10-26 22:32:44,483 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:44,507 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:44,531 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:44,536 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:44,542 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:44,548 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:44,560 INFO L700 Elim1Store]: detected not equals via solver [2018-10-26 22:32:46,569 WARN L686 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_23 |ULTIMATE.start_main_~#array~0.offset|) (select v_arrayElimCell_23 (+ |ULTIMATE.start_main_~#array~0.offset| (* 4 (mod (+ ULTIMATE.start_main_~index~0 4294967295) 4294967296))))) [2018-10-26 22:32:46,577 INFO L303 Elim1Store]: Index analysis took 2135 ms [2018-10-26 22:32:46,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 145 [2018-10-26 22:32:46,578 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-10-26 22:32:50,695 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. Received shutdown request... [2018-10-26 22:33:17,674 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-26 22:33:17,875 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 22:33:17,876 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 22:33:17,881 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 22:33:17,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:33:17 BoogieIcfgContainer [2018-10-26 22:33:17,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:33:17,882 INFO L168 Benchmark]: Toolchain (without parser) took 289127.96 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 886.0 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -447.8 MB). Peak memory consumption was 438.3 MB. Max. memory is 7.1 GB. [2018-10-26 22:33:17,883 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 22:33:17,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-26 22:33:17,884 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.37 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 22:33:17,884 INFO L168 Benchmark]: Boogie Preprocessor took 45.53 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-26 22:33:17,885 INFO L168 Benchmark]: RCFGBuilder took 470.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 772.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -819.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-10-26 22:33:17,886 INFO L168 Benchmark]: TraceAbstraction took 288302.65 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 113.2 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 361.0 MB). Peak memory consumption was 474.3 MB. Max. memory is 7.1 GB. [2018-10-26 22:33:17,890 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 263.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.37 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.53 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 470.00 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 772.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -819.4 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 288302.65 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 113.2 MB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 361.0 MB). Peak memory consumption was 474.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 11]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 11). Cancelled while BasicCegarLoop was analyzing trace of length 44 with TraceHistMax 11,while TraceCheckSpWp was constructing forward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 0 quantifier alternations,while SimplifyDDAWithTimeout was simplifying term of DAG size 76. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. TIMEOUT Result, 288.2s OverallTime, 11 OverallIterations, 11 TraceHistogramMax, 8.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 393 SDtfs, 301 SDslu, 1863 SDs, 0 SdLazy, 2844 SolverSat, 75 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 7.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 300 GetRequests, 224 SyntacticMatches, 16 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 63 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 473 ConstructedInterpolants, 0 QuantifiedInterpolants, 63631 SizeOfPredicates, 18 NumberOfNonLiveVariables, 946 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 18 InterpolantComputations, 2 PerfectInterpolantSequences, 0/886 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown